Tides Today & Tomorrow in Isle au Haut, ME

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Isle au Haut, ME.
Next low tide : 11:17 pm (0.9 ft)
Next high tide : in 2h 43m at 5:19 pm (9.4 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:11 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8414288
Common Questions About Tides

Isle au Haut, ME Tides - Sep 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:4310.15:09-0.45:26-0.25:587:10New Moon1Tue
2Wed12:0110.612:2410.55:50-0.66:11-0.55:597:08Waxing Crescent2Wed
3Thu12:4610.51:0710.86:32-0.56:58-0.76:017:06Waxing Crescent3Thu
4Fri1:3310.31:5310.87:16-0.37:48-0.66:027:04Waxing Crescent4Fri
5Sat2:2310.02:4310.78:050.08:42-0.46:037:02Waxing Crescent5Sat
6Sun3:189.53:3810.48:580.49:42-0.16:047:00First Quarter6Sun
7Mon4:189.14:4010.19:580.810:470.16:056:59First Quarter7Mon
8Tue5:258.75:479.811:041.011:560.36:066:57First Quarter8Tue
9Wed6:358.66:579.812:151.16:076:55Waxing Gibbous9Wed
10Thu7:448.78:049.81:040.31:231.06:086:53Waxing Gibbous10Thu
11Fri8:469.09:0410.02:070.12:260.76:106:51Waxing Gibbous11Fri
12Sat9:409.39:5810.23:03-0.13:220.36:116:49Waxing Gibbous12Sat
13Sun10:289.710:4710.23:53-0.24:120.16:126:48Full Moon13Sun
14Mon11:129.911:3110.14:38-0.24:570.06:136:46Full Moon14Mon
15Tue11:5210.05:19-0.15:400.06:146:44Full Moon15Tue
16Wed12:139.912:309.95:580.26:210.16:156:42Waning Gibbous16Wed
17Thu12:539.61:079.86:350.57:000.36:166:40Waning Gibbous17Thu
18Fri1:329.21:449.67:120.97:400.66:186:38Waning Gibbous18Fri
19Sat2:138.82:239.37:511.38:220.96:196:36Waning Gibbous19Sat
20Sun2:558.43:069.08:311.69:061.26:206:35Waning Gibbous20Sun
21Mon3:418.13:528.79:161.99:561.46:216:33Third Quarter21Mon
22Tue4:327.84:458.510:062.110:501.56:226:31Third Quarter22Tue
23Wed5:287.65:428.511:022.211:481.56:236:29Third Quarter23Wed
24Thu6:267.76:418.612:012.16:246:27Third Quarter24Thu
25Fri7:237.97:378.912:451.312:591.86:266:25Waning Crescent25Fri
26Sat8:148.48:299.31:371.01:521.36:276:23Waning Crescent26Sat
27Sun9:019.09:189.72:250.52:420.76:286:22Waning Crescent27Sun
28Mon9:459.710:0510.23:100.13:290.16:296:20New Moon28Mon
29Tue10:2710.310:5010.53:53-0.34:15-0.56:306:18New Moon29Tue
30Wed11:1010.811:3710.64:35-0.55:01-0.96:326:16New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414288)

Common Questions About Isle au Haut, ME Tides

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What time does the tide turn (slack tide) in Isle au Haut, ME today?

Slack tide in Isle au Haut, ME is approximately 8:18 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Isle au Haut, ME?

Isle au Haut, ME is currently in a neap phase. Tonight's moon is 52% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Isle au Haut, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Isle au Haut, ME?

Tide predictions for Isle au Haut, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Isle au Haut, ME?

Tide data for Isle au Haut, ME is sourced from NOAA Station #8414288. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8414288.

What is the moon phase in Isle au Haut, ME tonight?

Tonight the moon over Isle au Haut, ME is First Quarter (52% illuminated). This places Isle au Haut, ME in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA